The southern portion of the interior plains is too dry for forests and gives rise to grasslands or natural prairies. The native vegetation of the most southerly area consists of shortgrass with sagebrush and cactus. Farther north, where there is slightly more precipitation, there is a band of tallgrass prairie. At its northern limit the grasslands merge with the transitional parkland at the edge of the boreal forest. Today the grass area is small, crops having replaced grass in all but dry or hilly areas.

With its high organic matter and mineral content, the grassland soils are among Canada’s most fertile. The best soils for crops are the dark brown to black soils of the tallgrass and parkland zone, the area of Canada that is famous for wheat cultivation. The less fertile light brown soils of the shortgrass country tend to be alkaline, and the predominant agricultural activities are dryland farming and grazing. Wind erosion is a serious problem in prairie regions wherever the grassland has been converted to cultivated farmland.

Among the common grassland mammals are Richardson’s ground squirrel and the pocket gopher, both of which damage young grain crops. They continue to proliferate despite predation by badgers, hawks, and owls and farmers’ attempts at control. The first settlers to cross the Canadian prairies encountered enormous herds of bison (often called buffalo), but by the end of the 19th century hunters had reduced their numbers to near extinction. Bison may now be seen only in wildlife reserves. With the bison gone, mule deer and the pronghorn antelope are the remaining large mammals on the shortgrass plain. Farm drainage projects and extended drought have greatly reduced the prairie’s waterfowl habitat, causing a decline in their numbers.

People

Principal ethnic groups

Canada contains a mixture of diverse national and cultural groups. At the time of Canada’s first census, in 1871, about half the population was British and nearly one-third was French. Since that time the proportion of Canadians of British and French ancestry has dropped to about one-fourth each, as fewer people have immigrated from the United Kingdom and France and considerably more have arrived from other countries in Europe, Southeast Asia, and Latin America. Because immigrant groups have tended to settle in particular locales, they generally have retained their cultural identity. For example, Ukrainians largely migrated to the Prairie Provinces, where the land and climate were similar to their homeland, and many Dutch settled on the flat, fertile farmland of southwestern Ontario, where they practiced fruit and vegetable growing as they had done in the Netherlands. Many Chinese, Portuguese, Greeks, and Italians have settled in specific sections of large cities, particularly Toronto, Montreal, and Vancouver.

The mix of ethnic groups differs greatly from province to province. The proportion of people claiming ancestry from the British Isles ranges from about two-thirds in Newfoundland and Labrador to less than 5 percent in Quebec; the proportion of people of French descent ranges from a majority in Quebec to less than 2 percent in Alberta, British Columbia, Newfoundland and Labrador, the Northwest Territories, and Saskatchewan. More than one-third of Canadians identify themselves as being of mixed, or “multiple,” origins.

Historically, Canada received many immigrants from the United States, particularly during and after the American Revolution (1775–83), when colonists who remained loyal to the British crown (known as Tories in the United States and United Empire Loyalists in Canada) moved to what are now the Maritime Provinces and southern Quebec and Ontario. By 1790 about one-sixth of British North America’s total population was from territory that had become the United States. The American immigrants had been exposed to the ideas of representative government that had evolved along the Atlantic seaboard, and their ideas of governmental institutions were blended in Canada with those of people who came directly from Britain. There was some migration from the United States to Canada during the mid-19th century that increased in the late 19th and 20th centuries, but immigration to the United States from Canada was significantly higher.

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